Safety-razor.



T. WILD.

SAFETY RAZOR.

- APPLICATION FILED FEB. 6, 1915.

1,171,290. Patented Feb. 8,1916.

UNITED STATES PATENT OFFICE.

THOMAS WILD, OF MOSELEY, BIRMINGHAM, ENGLAND.

SAFETY-RAZOR.

To all whom it may concern." l

Be it known that I, THOMAS W1LD,sub]ect of the King of Great Britain,residing at,

143 St. Pauls road, Moseley, Birmingham, England, have invented certainnew and useful Improvements in Safet -Razors, 'of which the following isa speci cation. 7

The invention relates to a safety razor of the kind using a thinflexible and resilient blade which is positioned and clamped between aback plate and a guard plate, the latter having rigidly applied to itthe handle by which the razor-is held for use.

.Said handle is usually-of straight rod form extending from the guardplate at right angles.-

It is guard plate with registering transverse curvatures, to strain theflat thin blade during positioning and clamping to a correspondingcurvature, the cutting edges of said blade after the straining beingstill at right angles to the axis of the handle.

The invention provides for the blade being additionally strained orbentand clamped and fixed in a manner setting its cutting edge or edges atan inclination to the axis of the handle, or at an inclination to thedirection of hand pull from the handle, to, in

effect, provide in a safety razor a longitudinally inclined cuttingedge. The back plate and guard plate are each bodily formed with alongitudinal twist, or are upon their clamping faces, shaped in suchmanner that when the bladeis strained and clamped a fixture between themit has a diagonal curvature-put into it in addition to a transversecurvature, setting its cutting edge or edges inclined to the axis of thehandle, theback plate and guard plate being correspondingly.

set inclined to'the axis of the handle to give the requisite support tothe cutting edge or' edges for its, or their, full length. Theadditional straining aforesaid strengthensand givesvincreased rigidityto the cutting ed es.

The improvements aforesaid, hereina er 1 clearlyv stated in the .claims'are illustrated by the accompanying sheet ofdrawings.

. Figure 1 is a side elevation of the razor head and part of the handle.Fig. 2 is a left hand end elevation of Fig. 1. Fig. 3 is a transversesection of Fi 1;on the dotted line A, looking to the le t. Fig. 4 is asectionon the dotted line B Fig. 1, looking to the left. Fig. 5 is asection on the dotted line C Fig. 1, looking to the left. Fig. 6

known to provide the back plate and Specification of Letters Patent. iPatented Feb. 8,1916. Application filed February 6,1915. Serial No.6,552. v r

shows an end'elevation of the guard plate and handle separate. Fig. 7shows an-end elevation of the back plate and its parts separate. Fig.

, Except for the shaping of the back plate a and the guard plate 0, andthe consequent 8 shows an endelevation of. the flat blade.

straining to the same shape of the blade d,

the handle 0 to be engaged by a sleeve nut (not shown) applied at theouter .endof the handle, and a g are the positioning pins carried by theback plate to engage registering holes of the blade and the guard platefor purposes well known. The teeth on the i guard plate are like thoseusually used an are shown at 0 The clamping faces as and guard platesare shaped with a registering longitudinal twist providing, as shown, adiagonal curvature, and when the flat flexible resilient blade d isstrained, by clamping it between these faces, the cutting edges (1 d ofsaid blade are setinclined to'the axis of the handle 6?; so that a handpull fromthe handle in using the razor brings inclined and y of the backcutting edges into operation, giving a slant-.

ing or inclining cut. 'This setting of the cutting edges inclined .tothe axis of the'handle is very clearly represented by Fig. 1. The bladeso set has therefore a diagonal curvature as well. as a transversecurvature from a bendwhich is substantially a longitudinal twist, andthis has the effect of ma-' 'terially strengthening the cutting edges aswell as assisting the ease of shaving, par ticularly in the case ofastubborn beard.

Having now particularly described my invention what I claim and desireto secure by Letters Patent is a 1. A safety razor, including a backplate and guard plate whose inner blade-clamping faces areeach formedwith a registering longitudinal twist, a blade adapted ,to be clampedbetween these faces so as to strain it to the longitudinal twist, andahandle whose axis is set inclined to the cutting edge u or edges of theblade; the clamping of the blade putting a diagonal curvature into saidblade in addition to a transverse curvature, substantially as described.

g 1,171,aeo

- v 2. A safety razor including, a back clamping plate and acomplemental guard clamp- "in'g plate, each having a substantiallyspiral formation so that the same are twisted longitudinally, asubstantially flat blade adapted to be clamped between the clampingfaces of said guard and back strained into a longitudinal twistco'rrelates and to be sponding to said plates, and a handle to in which,said plates are secured, said handle-- extending at right angles fromthe clamped.

plates as a Whole and atan angle out of right angles to the twistededges thereof.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit- 15

